{"id":1059,"date":"2024-08-07T14:09:55","date_gmt":"2024-08-07T14:09:55","guid":{"rendered":"https:\/\/knowledge-center.novatec.com\/?page_id=1059"},"modified":"2024-09-04T08:20:40","modified_gmt":"2024-09-04T08:20:40","slug":"vacuum-system-technology","status":"publish","type":"page","link":"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/conveying-faq\/vacuum-system-technology\/","title":{"rendered":"Vacuum System Technology"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1059\" class=\"elementor elementor-1059\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-74c511e1 e-con-full e-flex e-con e-parent\" data-id=\"74c511e1\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-75b9c51e e-con-full e-flex e-con e-child\" data-id=\"75b9c51e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-77b49b38 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href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/design-considerations\/\" class = \"hfe-sub-menu-item\">Design Considerations<\/a><\/li>\n\t<li id=\"menu-item-1773\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/vacuum-pump-comparison-chart\/\" class = \"hfe-sub-menu-item\">Vacuum Pump Comparison Chart<\/a><\/li>\n\t<li id=\"menu-item-1774\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/special-applications\/\" class = \"hfe-sub-menu-item\">Special Applications<\/a><\/li>\n\t<li id=\"menu-item-1775\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/choosing-line-size-location\/\" class = \"hfe-sub-menu-item\">Choosing Line Size Location<\/a><\/li>\n\t<li id=\"menu-item-1776\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/to-purge-or-not-to-purge\/\" class = \"hfe-sub-menu-item\">To Purge or Not to Purge<\/a><\/li>\n\t<li id=\"menu-item-1777\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/the-purpose-of-blowback\/\" class = \"hfe-sub-menu-item\">The Purpose of Blowback<\/a><\/li>\n\t<li id=\"menu-item-1778\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a 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tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/\" class = \"hfe-menu-item\">Components<span class='hfe-menu-toggle sub-arrow hfe-menu-child-0'><i class='fa'><\/i><\/span><\/a><\/div>\n<ul class=\"sub-menu\">\n\t<li id=\"menu-item-1715\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/tubing-bends-couplers-and-flexible-hose\/\" class = \"hfe-sub-menu-item\">Tubing Bends Couplers and Flexible Hose<\/a><\/li>\n\t<li id=\"menu-item-1716\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/\" class = \"hfe-sub-menu-item\">Vacuum Pumps<span class='hfe-menu-toggle sub-arrow hfe-menu-child-1'><i class='fa'><\/i><\/span><\/a><\/div>\n\t<ul class=\"sub-menu\">\n\t\t<li id=\"menu-item-3770\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/the-ultimate-guide-to-vacuum-pumps-for-plastics-processing-how-to-choose-the-right-one-for-your-plant\/\" class = \"hfe-sub-menu-item\">The Ultimate Guide to Vacuum Pumps for Plastics Processing: How to Choose the Right One for Your Plant<\/a><\/li>\n\t\t<li id=\"menu-item-4168\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/is-your-vacuum-pump-a-legal-liability\/\" class = \"hfe-sub-menu-item\">Is Your Vacuum Pump a Legal Liability?<\/a><\/li>\n\t\t<li id=\"menu-item-1717\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/pump-types\/\" class = \"hfe-sub-menu-item\">Pump Types<\/a><\/li>\n\t\t<li id=\"menu-item-1718\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/pump-performance-characteristics\/\" class = \"hfe-sub-menu-item\">Pump characteristics<\/a><\/li>\n\t\t<li id=\"menu-item-1719\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/startup-troubleshooting\/\" class = \"hfe-sub-menu-item\">Startup Troubleshooting<\/a><\/li>\n\t<\/ul>\n<\/li>\n\t<li id=\"menu-item-1720\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/material-selection-methods\/\" class = \"hfe-sub-menu-item\">Material Selection Methods<span class='hfe-menu-toggle sub-arrow hfe-menu-child-1'><i class='fa'><\/i><\/span><\/a><\/div>\n\t<ul class=\"sub-menu\">\n\t\t<li id=\"menu-item-1721\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/material-selection-methods\/open-array-fantail-manifolds\/\" class = \"hfe-sub-menu-item\">Open Array Fantail Manifolds<\/a><\/li>\n\t\t<li id=\"menu-item-1722\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a 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\"hfe-sub-menu-item\">Vacuum Loaders<span class='hfe-menu-toggle sub-arrow hfe-menu-child-1'><i class='fa'><\/i><\/span><\/a><\/div>\n\t<ul class=\"sub-menu\">\n\t\t<li id=\"menu-item-3847\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-loaders\/the-ultimate-guide-to-self-contained-loaders-for-plastics-processing\/\" class = \"hfe-sub-menu-item\">The Ultimate Guide to Self-Contained Loaders for Plastics Processing<\/a><\/li>\n\t\t<li id=\"menu-item-1725\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-loaders\/compressed-air-loaders\/\" class = \"hfe-sub-menu-item\">Compressed Air Loaders<\/a><\/li>\n\t\t<li id=\"menu-item-1726\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-loaders\/modern-loader-design\/\" class = \"hfe-sub-menu-item\">Modern Loader Design<\/a><\/li>\n\t\t<li id=\"menu-item-1727\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-loaders\/powder-loaders\/\" class = \"hfe-sub-menu-item\">Powder Loaders<\/a><\/li>\n\t\t<li id=\"menu-item-1728\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-loaders\/pellet-regrind-loaders\/\" class = \"hfe-sub-menu-item\">Pellet Regrind Loaders<\/a><\/li>\n\t<\/ul>\n<\/li>\n\t<li id=\"menu-item-1729\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" 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hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/gaylord-unloading\/lances\/\" class = \"hfe-sub-menu-item\">Lances<\/a><\/li>\n\t<\/ul>\n<\/li>\n\t<li id=\"menu-item-1705\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/vacuum-receivers\/\" class = \"hfe-sub-menu-item\">Vacuum Receivers<span class='hfe-menu-toggle sub-arrow hfe-menu-child-1'><i class='fa'><\/i><\/span><\/a><\/div>\n\t<ul class=\"sub-menu\">\n\t\t<li id=\"menu-item-4041\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/vacuum-receivers\/the-ultimate-guide-to-vacuum-receivers-for-plastics-processing\/\" class = \"hfe-sub-menu-item\">The Ultimate Guide to Vacuum Receivers for Plastics Processing<\/a><\/li>\n\t\t<li id=\"menu-item-1713\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/vacuum-receivers\/features-to-consider\/\" class = \"hfe-sub-menu-item\">Features To Consider<\/a><\/li>\n\t\t<li id=\"menu-item-1714\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/vacuum-receivers\/trouble-shooting-vacuum-receivers\/\" class = \"hfe-sub-menu-item\">Trouble shooting<\/a><\/li>\n\t<\/ul>\n<\/li>\n\t<li id=\"menu-item-1733\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/blenders-and-feeders\/\" class = \"hfe-sub-menu-item\">Blenders and Feeders<\/a><\/li>\n\t<li id=\"menu-item-1734\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/bulk-resin-storage-and-handling\/\" class = \"hfe-sub-menu-item\">Bulk Resin Storage and Handling<span class='hfe-menu-toggle sub-arrow hfe-menu-child-1'><i class='fa'><\/i><\/span><\/a><\/div>\n\t<ul class=\"sub-menu\">\n\t\t<li id=\"menu-item-1735\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a 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href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/cyclone-dust-collectors\/\" class = \"hfe-sub-menu-item\">Cyclone Dust Collectors<\/a><\/li>\n\t\t<li id=\"menu-item-1741\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/take-off-box-probes\/\" class = \"hfe-sub-menu-item\">Take off box probes<\/a><\/li>\n\t\t<li id=\"menu-item-1742\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/proportioning-purge-valves\/\" class = \"hfe-sub-menu-item\">Proportioning Purge Valves<\/a><\/li>\n\t\t<li id=\"menu-item-1743\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/station-valves\/\" class = \"hfe-sub-menu-item\">Station valves<\/a><\/li>\n\t\t<li id=\"menu-item-1744\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/drawer-magnets\/\" class = \"hfe-sub-menu-item\">Drawer Magnets<\/a><\/li>\n\t\t<li id=\"menu-item-1745\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/vacuum-take-off-box-purge-valve\/\" class = \"hfe-sub-menu-item\">Vacuum Take Off Box Purge Valve<\/a><\/li>\n\t\t<li id=\"menu-item-1746\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/vacuum-take-off-boxes\/\" class = \"hfe-sub-menu-item\">Vacuum Take Off Boxes<\/a><\/li>\n\t<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li id=\"menu-item-1783\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children parent hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/conveying-controls\/\" class = \"hfe-menu-item\">Conveying Controls<span class='hfe-menu-toggle sub-arrow hfe-menu-child-0'><i class='fa'><\/i><\/span><\/a><\/div>\n<ul class=\"sub-menu\">\n\t<li id=\"menu-item-1784\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/conveying-controls\/matching-a-control-to-your-system\/\" class = \"hfe-sub-menu-item\">Matching A Control To Your System<\/a><\/li>\n\t<li id=\"menu-item-1785\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/conveying-controls\/vacuum-system-controls\/\" class = \"hfe-sub-menu-item\">Vacuum System Controls<\/a><\/li>\n<\/ul>\n<\/li>\n<li id=\"menu-item-1786\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children parent hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/conveying-faq\/\" class = \"hfe-menu-item\">FAQ<span class='hfe-menu-toggle sub-arrow hfe-menu-child-0'><i class='fa'><\/i><\/span><\/a><\/div>\n<ul class=\"sub-menu\">\n\t<li id=\"menu-item-1787\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/conveying-faq\/vacuum-system-technology\/\" class = \"hfe-sub-menu-item\">Vacuum System Technology<\/a><\/li>\n\t<li id=\"menu-item-1788\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/conveying-faq\/contamination\/\" class = \"hfe-sub-menu-item\">Contamination<\/a><\/li>\n\t<li id=\"menu-item-1789\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/conveying-faq\/upgrading-systems\/\" class = \"hfe-sub-menu-item\">Upgrading Systems<\/a><\/li>\n\t<li id=\"menu-item-1790\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/conveying-faq\/angel-hair-fines-and-dust\/\" class = \"hfe-sub-menu-item\">Angel Hair Fines and Dust<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul> \n\t\t\t\t<\/nav>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-404da89c e-con-full e-flex e-con e-child\" data-id=\"404da89c\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-409a5264 elementor-widget elementor-widget-page-title\" data-id=\"409a5264\" data-element_type=\"widget\" data-widget_type=\"page-title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\n\t\t<div class=\"hfe-page-title hfe-page-title-wrapper elementor-widget-heading\">\n\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.novatec.com\/knowledge-center\">\n\t\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\n\t\t\t\t\t\t\t\t\n\t\t\t\tVacuum System Technology  \n\t\t\t<\/h2 > \n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4ccbf6da e-con-full e-flex e-con e-child\" data-id=\"4ccbf6da\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-38ee55e e-con-full e-flex e-con e-child\" data-id=\"38ee55e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ec19e65 elementor-widget elementor-widget-text-editor\" data-id=\"ec19e65\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Question:<\/strong><\/p><p>How can we reduce high level static at the pick-up wand end and hose?<\/p><p><strong>Response:<\/strong><\/p><p>You can reduce static at the pickup end when conveying through grounding.<\/p><p>Using flex hose with static wire, strip the wire from one end of the hose helix and tuck it between the flex hose and pickup probe.<\/p><p>After that, you can ground the conveying process in one of two ways:<\/p><ul><li>Strip the wire from the other end of the hose and tuck it between the flex hose and loader\/receiver inlet stub.\u00a0 NOTE: The loader body must be grounded for this to work.<\/li><li>Add a grounding strap to the pickup probe and extend a grounding wire from the strap to a ground source.\u00a0<\/li><\/ul><p>NOTE: Be careful to route the grounding wire clear of your operator work space to avoid wire breakage, and tripping or overhead clearance hazards.When implemented successfully, either approach will provide the static electricity will\u00a0have a path to flow out of the conveying line.<\/p><p><strong>Question:<\/strong><br \/>What&#8217;s the advantage of a single, high efficiency vacuum pump instead of a single, high efficiency pressure system?<\/p><p><strong>Response:<\/strong><br \/>The type of material and the distance you are conveying will be the main factors in determining whether a pressure or vacuum system is best for you but\u2026if a high-capacity vacuum pump will do the job, you will save in initial cost and in maintenance costs for the life of the system.<\/p><hr \/><p><strong>Question:<\/strong><br \/>What can be done to prevent the formation of pellet clumps in the conveying lines?<br \/>Fines amount is very low.<\/p><p><strong>Response:<\/strong><br \/>There are a number of reasons that plugs or clumps of material may form in a material line.<\/p><ul><li>Tight elbow bends (less than 6-8 x the tube diameter) increase pressure drop and reduce velocity<\/li><li>Bends too close together (less than 10\u2019 apart) \u2013 same as above<\/li><li>Leaks in the system may be causing vacuum\/velocity loss<\/li><li>Clogged receiver or pump filters may be increasing pressure drop and reducing vacuum<\/li><li>Too much air in the conveying line (probe tube carburetor screens should be opened about 50%) \u2013 no more.<\/li><li>Finally \u2013 If you have expanded the system, the capacity you expect may be exceeding the pump capacity<\/li><\/ul><hr \/><p><strong>Question:<\/strong><br \/>What happens when air pressure is not sufficient?<\/p><p><strong>Response:<\/strong><br \/>Whether you are talking about a pressure system that blows material through the lines, or a vacuum system that sucks material through the lines, insufficient air results in the same kinds of problems.<\/p><ul><li>Pickup velocity may not be sufficient to get material moving<\/li><li>Even if the material does move through the lines, it may start to pile up at elbows or at other places in the line, causing line plugs.<\/li><\/ul><hr \/><p><strong>Question:<\/strong><br \/>Can high vacuum systems be used to convey dry air?<\/p><p><strong>Response:<\/strong><br \/>Yes, but purging with dry air takes time and will somewhat reduce total conveying capacity per hour. Also, high vacuum pumps operate at higher temperatures than traditional vacuum pumps and should not be forced to move air that&#8217;s already heated above ambient, so precautions should be taken to ensure air temperature doesn&#8217;t rise above ambient.<\/p><hr \/><p><strong>Question:<\/strong><br \/>Is vacuum or pressure better for my specific conveying needs? (We are a large East Coast U.S. processor, and we need a new, not replacement, installation in which PP and PE pellets needed to be conveyed over an installed distance of 750 horizontal feet and 35 vertical feet, including seven elbows.)<\/p><p><strong>Response:<\/strong><br \/>Your needs can be met by a vacuum pump and a custom designed 2.5-3-inch OD tubing system delivering a flow rate of 4500 lb\/hr to satisfy a process rate of 3000 lb\/hr. Spiral-grooved tubing reduces the occurrence of angel hair.<\/p><hr \/><p><strong>Question:<\/strong><br \/>Can vacuum pumps let me use a 2-inch line OD, rather than increasing line OD? (We are a large custom molder setting up a new installation involving nylon\/ABS pellets and regrind.)<\/p><p><strong>Response:<\/strong><br \/>Your needs can be addressed with an upgrade using twelve newly enhanced vacuum pumps, with high-temperature seals\/bearings, in a 2-inch system, plus two additional vacuum pumps for maximum conveying rates across 500 horizontal feet. You could also consider a larger (2.5-inch<br \/>OD) line size, but that would be more expensive.<\/p><hr \/><p><strong>Question:<\/strong><br \/>We are using PE pellets\/regrind and our conveying system can\u2019t keep up. What are our options?<\/p><p><strong>Response:<\/strong><br \/>You report that your existing three- pump system that has expanded over a 7-year period from 1500 lb\/hr conveying 380 ft, to 2500 lb\/hr, conveying 510 ft. Upgrading your system with high-performance vacuum pumps will immediately satisfy your system\u2019s need to convey at a higher rate. We acknowledge your concern that you might have to rip out and replace your entire system, but that would certainly be overkill.<\/p><hr \/><p><strong>Question:<\/strong><br \/>What is the vacuum level of a traditional vacuum system?<\/p><p><strong>Response:<\/strong><br \/>The operational vacuum, for regenerative blowers, expressed in inches of mercury (Hg) is usually around 6 to 11 inches Hg, depending on whether it&#8217;s a single or dual-stage pump.<\/p><p>Traditional vacuum displacement pumps generate around 10\u201312 inches Hg operating vacuum, compared to 14\u201315 inches Hg for high-vacuum pumps.<\/p><hr \/><p><strong>Question:<\/strong><br \/>Can a traditional vacuum pump running at 12 inches Hg be converted to a high vacuum pump running at 15 inches Hg? If so, how?<\/p><p><strong>Response:<\/strong><br \/>It is not practical to increase the vacuum of a traditional pump, partly because high vacuum pumps do produce more heat and the internal components of a traditional pump are not designed for those higher temperatures.<\/p><hr \/><p><strong>Question:<\/strong><br \/>Where is velocity control typically used within a high vacuum system?<\/p><p><strong>Response:<\/strong><br \/>The velocity is controlled from the middle to the end of the system where velocity typically<br \/>increases the most.<\/p><hr \/><p><strong>Question:<\/strong><br \/>What is the capacity limit on a 2-inch line at 800 ft.?<\/p><p><strong>Response:<\/strong><br \/>To respond to this question, we need to know:<\/p><ul><li>Material type<\/li><li>Bulk Density<\/li><li>The equivalent distance \u2013 unless 800 feet is the equivalent distance<\/li><li>Pump type and horsepower so we can use the pump curve to determine probable throughput<\/li><\/ul><div><p><strong>Thank you to all for your questions.<\/strong><\/p><p>Conveying questions are answered by\u00a0<a href=\"\/knowledge-center\/plastics-conveying\/plasticsconveying\/\">Novatec expert<\/a><br \/>Jim Zinski, VP Systems Design<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6e4cd9ff e-con-full e-flex e-con e-child\" data-id=\"6e4cd9ff\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3b69934d elementor-widget elementor-widget-shortcode\" data-id=\"3b69934d\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t<div data-elementor-type=\"section\" data-elementor-id=\"632\" class=\"elementor elementor-632\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div class=\"elementor-element elementor-element-f5e2127 e-flex e-con-boxed e-con e-parent\" data-id=\"f5e2127\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-f739977 e-con-full e-flex e-con e-child\" data-id=\"f739977\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cc9d922 elementor-widget elementor-widget-heading\" data-id=\"cc9d922\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Ask the Expert<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3583113 elementor-widget elementor-widget-image\" data-id=\"3583113\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"777\" src=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/Conveying-Expert-0623-copy-768x777.png\" class=\"attachment-medium_large size-medium_large wp-image-2422\" alt=\"\" srcset=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/Conveying-Expert-0623-copy-768x777.png 768w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/Conveying-Expert-0623-copy-296x300.png 296w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/Conveying-Expert-0623-copy.png 1000w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Ryan Ismirlian, Conveying Product Engineer Novatec, Inc.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db72973 elementor-widget elementor-widget-heading\" 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